Le 2017-05-03 01:52, Kari Pihkala a écrit :
>>
>> If it's typesetting correctly in mixed orientation, but not upright,
>> it's a browser bug.
>> (I think this is unclear because UTR50 does not provide a data point
>> to reference here,
>> but the proper behavior can be derived from a combination of UTR50
>> data and the script
>> tag.)
>>
>> ~fantasai
>
> Thanks. I filed a bug for Firefox [1] and Chrome [2].
>
> I also found a test case for this (Mongolian code points
> U+1800–U+18AF), but I don’t understand why it claims it passes for
> Blink:
> http://test.csswg.org/harness/results/css-writing-modes-3_dev/grouped/text-orientation-script-001b/
Kari,
I got 3 passes when I tried that test myself on 2016-11-09 with Chrome
56. I still get 3 passes with Chrome 58. You must be referring to the
test itself. This is where I believe you should try to reach Koji Ishii,
who authored that test, and notify him that Traditional Mongolian glyphs
should not translate upright when 'text-orientation: upright' is
declared.
I am under the impression that it is the UTR50 document that should be
reviewed and corrected here in light of what you and Elika have been
exchanging about.
> Chrome doesn’t display Mongolian correctly for text-orientation:
> upright. Is the test for something else than testing text-orientation:
> upright?
No, I do not think that the test is testing anything else or anything
more than 'text-orientation: upright'. It uses a special font too via a
font-face at-rule:
@font-face {
font-family: "orientation";
src: url("support/adobe-fonts/CSSHWOrientationTest.otf");
}
> I couldn’t find any other test for upright Mongolian.
There is no test specifically testing 'text-orientation: upright' when
being applied on Traditional Mongolian glyphs in the writing-modes test
suite nor over in Richard Ishida's website:
https://www.w3.org/International/tests/repo/results/writing-mode-vertical#lr_glyphs
+CC: Koji Ishii
Gérard
> [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1361631
> [2] https://bugs.chromium.org/p/chromium/issues/detail?id=717862